Building a Hushbox (Alternate Solution)

Fig. 21 shows the external part of the chassis insulated with polyurethane foam in order to reduce noise.

Figure 21

Fig. 22 shows the front part of the hushbox inspired from the existing shown in Fig.7.

Figure 22

Fig. 23 to Fig. 25 show details of the noise insulated fan chassis.

Figure 23

Figure 24

Figure 25